Table 5.
Percentage of normal or abnormal FEV 1 of never smokers calculated using NHANES III versus ethnicity-specific equations
| Korean (n = 183) | All migrants (n = 88) | East Asia (n = 5) | Southeast Asia (n = 63) | Central Asia (n = 8) | South Asia (n = 12) | ||
|---|---|---|---|---|---|---|---|
| NHANES III | Normal (%) | 167 (91.26) | 60 (68.18) | 5 (100) | 44 (69.84) | 8 (100) | 3 (25.00) |
| Abnormal (%) | 16 (8.74) | 28 (31.82) | 0 (0) | 19 (30.16) | 0 (0) | 9 (75.00) | |
| Ethnicity-specific | Normal (%) | 179 (97.81) | 86 (97.73) | 5 (100) | 62 (98.41) | 8 (100) | 11 (91.67) |
| Abnormal (%) | 4 (2.19) | 2 (2.27) | 0 (0) | 1 (1.59) | 0 (0) | 1 (8.33) | |
| Kappa | 0.3783 | 0.095 | –† | 0.0715 | –† | 0.0588 | |
| p value | 0.0005 | <0.0001 | <0.0001 | 0.0047 |
† Kappa not available.
FEV; Forced expiratory volume, NHANES; National Health and Nutrition Examination Survey.